One of the quickest ways to embarrass one's campaign is to use an inaccurate stock photo, and that's precisely what happened to two Democratic candidates on Thursday.

In an attempt to commemorate the passage of the 19th Amendment — which was ratified on Aug. 18, 1920, and gave women in all states the right to vote — LuAnn Bennett and Steve Santarsiero each tweeted an image of British suffragettes.

From Bennett, who is running to unseat incumbent Rep. Barbara Comstock in Virginia:

And from Santarsiero, who is running against BrianFitzpatrick in Pennsylvania:

The photo these two candidates used was actually of British suffragettes Annie Kenney and Christabel Pankhurst.

Photo issues — while harmless in the grand scheme of campaign things — can be a source of frustration. In 2014, then-candidate Bruce Braley used a photo of an English farm when trying to connect with Iowa farmers. Braley took down the photo, and eventually lost his election. Not that the photo was the cause, but it did provide an illustration of Braley being out of touch with Iowa farmers.

In this cycle, Donald Trump's campaign has used photographs of both the German Wehrmacht and the Soviet Red Army in images intended to honor American military veterans.

Note to politicians: If you're going to try and honor an American movement, it's best to use photos of Americans.

Correction: An earlier version said Santarsiero was running against incumbent Mike Fitzpatrick in Pennsylvania. He is actually running against Brian Fitzpatrick, as Mike is retiring.

Ashe Schow is a commentary writer for the Washington Examiner.